DE102005004176A1 - Refill for writing, drawing or painting instruments has at least one coating or partial coating containing pieces of data specific to refill - Google Patents

Abstract

The surface of the refill has at least one coating and/or at least one partial coating. The coating is assigned one or more pieces of data which are specific to the refill such as manufacturer's details, hardness, quality feature and/or line thickness. The coating (11) or partial coating can be a metal coating made of copper, titanium or aluminium compounds for example.

Description

The Invention relates to a mine for Write, draw and / or painting devices according to the preamble of the main claim.

mines or fine mines for writing, drawing or painting are in principle known.

in the following are under mines writing, drawing and / or painting medium understood in wood-type pens, i. between wooden boards glued or as separate mines, which in case or fine lead pencils are used.

Out The prior art discloses fired or unfired mines, which are present as lead or color mines. Disadvantageous for all mines is it that from the surface of such mines, for example in the form of coloring dust, replaces. For example, graphite dust accumulates inside the fine pencil on and trickles when using the front of the writing tip on the to be inscribed medium, which is polluted by it or it comes to jamming in the mechanics of such pins, which the functional safety is no longer guaranteed. The mine feed for example, can not work satisfactorily or the Clamping effect is reduced.

Also when handling individual mines become the user's fingers soiled with graphite dust.

Further it is considered disadvantageous that the user with the naked eye can not recognize what kind of mines it is, i. e. Information on mine strength, the manufacturer, etc. remain hidden.

task The invention is therefore a mine for writing, characters or To create painting that does not have the disadvantages mentioned and which especially not rub off and over Visible features Information on the type of used Mine supplies. It is another object of the invention to provide an improved Interaction between the mine surface and the points of contact of the Mine holders to reach.

These Task is with the characterizing features according to claim 1 solved.

advantageous Embodiments emerge from the subordinate claims.

Under Mines for writing, drawing, or painting are understood on the one hand Mines fixed in wood or other sharpenable materials and on the other hand, mines that are slidable in a bend Case held are.

Examples therefor are wooden pencils, fine mines for mechanical pencils, so-called mechanical pencils and mines for Case pins.

there the mines usually do an outer diameter in the range of about 0.3 mm to 6 mm.

at The mines can be both fired and unfired Mines of different colors act.

Is solved the task in that the mine according to the invention at least one partial coating on its surface having. Partial coatings can paraxial, spiral and / or annular on the surface be applied to the mine.

Advantageous can be a full or partial coating in the longitudinal direction, as these Coating can be applied already in the mine production.

in this connection It is irrelevant which cross section a completely or partially coated Mine has.

Of the Mine cross-section can be circular, oval, triangular, hexagonal, rectangular or almost any shape be educated.

The Best protection against abrasion or discoloration provides a complete Coating. In this case, the coating can be configured in one or more colors.

Further has been shown that by the described coatings no apparently noticeable reduction in the quality of the smear he follows.

It has been shown that by such coatings the strength against mine breakage and / or the spiking of the mine not negative impaired but on the contrary a small increase in the bending strength goes hand in hand, by filling up or by rounding off surface defects for example in the form of notches.

Based on some figures, the inventive concept will be closer in the following wrote.

in this connection demonstrate:

1 a mine with a partial coating;

2 : the cross section of the mine according to 1 ;

3 : mine according to the invention in sharpened form

1 shows a fine mine 1 which coated 11 and uncoated areas 12 having. Along their longitudinal axis longitudinal strips are applied. The illustrated striation can be deposited a certain information on mine hardness, mine diameter or manufacturer.

2 shows the cross section of the mine 1 according to 1 , In this embodiment, the coating is thin in such a way that the coated and uncoated regions are not visible in cross-section and therefore are not designated with positions.

3 shows a mine according to the invention 1 which is completely coated, with the mines in the tip area 13 pointed. Here it can be seen that when sharpened mine, the coated area 11 not in the smear zone of the tip area 13 the mine lies.

One potential Method for coating, or partial coating of mines is the procedure of "Physical Vapor Deposition "(PVD).

Here These are vapor deposition processes using plasma-active Methods, such as ion plating, the activated reactive Vapor deposition, the hollow-cathode ion plating and the high-frequency and magnetron sputtering. The method is particularly suitable here, because the mines to be coated are simple geometric shapes. The coating substances. can based on Al, Cu, TiC and / or titanium.

By this method can thin metal layers be applied. The layer thicknesses are in the range of 100 up to 1000 nm.

exemplary its the colors obtained with the coating, silver, or gold Interference colors quoted.

Another method of coating is exemplified by the CVD method (chemical vapor deposition). By SiO _x deposition, a coating is achieved, which appears glassy.

It has been shown that by such coatings the strength against mine breakage and / or the spiking of the mine not negative impaired but on the contrary an increase in strength against tip breakage could be determined.

It could spoken by such coatings of a mine compensation be compensated because damaged areas and / or unevenness on the surface can be. The layer thicknesses are between 25 and 300 nm.

The Process PVD and CVD are particularly suitable for fine-mine coatings, there too thin and exact layers can be achieved.

For example can by a metallic surface coating of a fine mine, which is to be held in a metal clamp, a much better clamping effect can be achieved than in graphite surfaces, ie uncoated mines, in metal clamps of fine lead pencils. In this case, the at least one coating and / or at least a partial coating as a barrier, masking or sealing layer to the color-releasing surface educated.

The Coating may be specific to the surface of the interior of a mechanical Mine holders be tuned to a safe mine advance and to ensure a good lead clamping effect in the clamping pliers.

Of further there is the possibility the mine with a thin one To provide plastic or paint layer. Examples of plastics are PU, PA and PVA.

The Invention relates to a mine for Write, draw and / or painting devices, both the surface of the Mine at least one coating and / or at least one partial coating having. The at least one coating or at least one partial coating is assigned a mine-specific information, the mine-specific Information as a manufacturer identifier, hardness identifier, quality feature and / or line thickness identifier is trained.

The at least one coating and / or at least one partial coating has a layer thickness of 1 to 3000 nm.

The at least one coating and / or at least one partial coating is formed as a metallic coating, wherein the metal is selected from the group of noble metals, copper, titanium or aluminum compounds, or from a combination of such metal groups composed.

The at least one partial coating substantially parallel, annular and / or helically is trained.

The at least one coating or at least one partial coating can be designed in ISO colors.

1

mine

11

coated Area (shown in dark)

12

uncoated Area (highlighted)

13

tip area

Claims (7)

Mine for writing, drawing and / or painting equipment, characterized in that the surface of the mine has at least one coating and / or at least one partial coating. Mine according to claim 1, characterized in that the at least one coating and / or the at least one Partial coating associated with one or more mine-specific information are. Mine according to claim 1 or 2 characterized that the mine-specific information as a manufacturer identifier, Hardness identifier quality feature and / or line thickness identifier is trained. Mine according to claim 1, characterized in that that is the at least one coating and / or at least one partial coating has a layer thickness of 1 to 3000 nm. Mine according to one of the preceding claims thereby in that the at least one coating and / or at least a partial coating is a metallic coating and that the metal belongs to the group of precious metals, copper, titanium or aluminum compounds is selected, or from a Combinations of such metal groups composed. A mine according to any one of the preceding claims characterized in that the at least one sub-coating is substantially parallel, annular and / or helical is trained. A mine according to any one of the preceding claims characterized in that the at least one coating or at least a partial coating is formed in ISO colors.